An object is held 24.8 cm from a lens of focal length 16.0 cm. What is the magnification of the image?

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

What is the angular momentum of the bar about the axle?